I am seeing a very strange issue. We have an off-site Data Center, COLO, that is connected VIA a IPSEC Site-to Site-tunnel with our Main Site, Sophos on both ends. Recently we needed to upload some ISOs to the Datastore. When I try to upload any file from the Main Site to the Datastoreat the COLO it fails in VMWare. The file looks like it is uploading but when it hits 30-34% it fails out. I spent days thinking it was a VMWare issue and the Certs. I corrected the Cert issue but still nothing. Finally I tested a File Upload from a VM that is at the COLO and it works perfectly! I then tested a file upload from a RED that is connected to the Main Site and it worked through that same Site-to-Site IPSEC Tunnel, but nothing works from the Main Site to the COLO through the IPSEC Tunnel. The log viewer show TCP RST errors on the VPN Rule anytime I start an upload. We have no restrictions or scanning on the VPN Tunnel rules. We have workarounds but there is something wrong with the Sophos code.
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